Monday, August 13, 2012

Wavelet q-Fisher information Measure for signal analysis

Wavelet q-Fisher information was recently shown to be a suitable tool for scaling signal analysis in the article Wavelet q-Fisher information enhances the so-called wavelet Fisher information measure and generalizes it by incorporating a parameter q. Parameter q not only can adjust and refine the analysis, but also helps in associating to wavelet q-Fisher information potential applications for the analysis of scaling signals. Wavelet q-Fisher information can analyze EEG signals in order to better understand the characteristics and behaviour of the human brain. This technique can also be used to analyze ECG signals and in this context propose potential applications to treat in a suitable way heart-related diseases. There is much to do in both situations, but we believe that by the application of these tools significant improvements can be gained. CACICC Research group expects to apply and study these phenomena in the near future in conjuntion with brain graphs. For more information on the theoretical findings and expressions associated to wavelet q-Fisher information please refer to the journal article by CACICC members in Entropy For more information and potential colaborations please contact CACICC research group members Julio Ramirez-Pacheco, Luis Rizo-Dominguez, Joel Trejo-Sánchez and Francisco Manzano-Pinzón.

CORE-2012 is receiving Submissions

CORE-2012, a medium level computing conference will be held at Mexico City in November 28-30 at the Center for Computing Research (CIC-IPN). The Conference provides a forum for the interexchange of ideas in the areas of Computing, Signal Processing, Control Theory among others. Submissions are received from now and until August 19th. For more information on this conference and the areas on which potential papers are received please visit the following page CACICC Research group papers started on this conference and we as a group recommend this conference to young researchers planning to exchange ideas with students within Mexico.

Jitter and Packet Loss Rate in VoIP Can Also be Modeled by Self-Similar Network Traffic

In a recent journal paper, CACICC members, have recently found that VoIP QoS Parameters, jitter (Defined as the packet delay variation) and packet loss rate follow or can be modeled by self-similar fractal stochastic signals. This finding opens new possibilities in the understanding of this type of traffic and also in the design of novel algorithms such as buffers and codecs that not only take into account this behaviour but also adapt to possible changes associated to this signals. For more information on this subject please visit  the link, where you can further read about these interesting topics and if you dont have acess please request a preprint of this article. We congratulate the results of CACICCs members and also the recent collaborations that  undoubtedly help to increase to the "en consolidación" status of the research group.

Friday, August 10, 2012

CURSO: Fundamentos de Voz sobre IP
13-17 Agosto, 2012 
09:00-13:00 HRS
Universidad del Caribe
Cancún, México

Impartido por:

Dr. Homero Toral Cruz
Profesor Investigador de Tiempo Completo
Departamento de Ciencias e Ingeniería
Universidad de Quintana Roo

COSTO: Gratuito

CUPO: Limitado a 15 personas.
Fecha de Inicio: Lunes 13 de Agosto
Fecha de Finalización 17 de Agosto


En este curso se trata sobre las ideas fundamentales, componentes e implementación de sistemas de voz sobre IP (VoIP).  Se estudiarán los conceptos de empaquetamiento de VoIP, codecs, swtiches, protocolos, etc con énfasis en su implantación y utilización práctica. Se entenderá el porque las compañias telefónicas se están convirtiendo en compañías que utilizan VoIP y el cómo y porque se obtienen ahorros para organizaciones pequeñas, medianas y grandes. El curso va dirigido para estudiantes con sólidos conocimientos sobre redes y telecomunicaciones, preferiblemente del segundo ciclo en adelante. El curso es impartido por un reconocido investigador en el área de VoIP con numerosas publicaciones en el tema.


1.-  Estudiantes del segundo ciclo en adelante
2.-  Laptop

Inscripciones: y

Nota: Se seleccionará a los estudiantes que cumplan con los requisitos y se les enviará un correo de confirmación junto con los detalles del lugar donde se impartirá el curso. Se les entregará diplomas a los estudiantes que tomen el curso.

Wednesday, August 8, 2012

Acceptance of JCR paper

Congratulation to the CACICC group for the acceptance of a JCR paper:

A motivation to keep working.

Friday, March 2, 2012

CACICC Colaborations starts to work with new article accepted in Journal

CACICC Research group maintains an active colaboration with several domestic and international researchers and institutions. One of these colaborations is with University of Quintana Roo researchers and CINVESTAV with a joint project on active network measurements. The project aims at studying the nature and characteristics of several types of traffic including VoIP, VoD, etc. CACICC also has several projects which are active and include those made with ITESM, CICESE and Univeristy of Salermo. We expect new colaborations and also expect many results from these colaborations. This is the first but not last meaningful result which is also indexed by Thomson's JCR index which guarantees the authors to be in the  national system of reserachers. The first result was presented in journal Mathematical Problems in Engineering and deals with the important and still unresolved problem of scale-invariant signal classification. The article entitled "Distinguishing Stationary/Nonstationary Scaling Processes Using Wavelet Tsallis q-Entropies" proposes a novel technique based on wavelet Tsallis q-entropies to accomplish the classification and based on extensive experimental and comparative studies demonstrates that our technique is superior to current techniques proposed in the literature. For more information on the article please visit the journal url where you can download and read our paper. Finally we thank all authors for their valuable support and we are next to obtain more results on this specific project with University of Quintana Roo/CINVESTAV.

Friday, February 17, 2012

CACICC Paper accepted in Ingeniería

The paper entitled "Level-Shift Detection in Communication Network Traffic Traces" has been published by journal Ingenieria, this paper describes a novel methodlogy based on physical information for analyzing scaling processes. The application of these technique to real traces obtained from OWD measurements and also from VBR video traces validates the advantages of wavelet physical information. For more information and details on the method, please visit
Congratulation to all authors of the paper, we expect better results to come in the future.

Wednesday, August 31, 2011

IEEE Globecom is now receiving submissions

The IEEE Globecom, a major conference of IEEE communications society will be held at Disneyland Hotel from 3-8 December 2012. IEEE Globecom is highly recognized as one of the flagship and more important conferences in the communications filed. IEEE Globecom not only offers high quality presentations but also the opportunity to observe current, state of the art research in communications theory and related fields.  CACICC recommends to submit a paper in this conference beacuse of their high-visibility and the opportunity it represents to exchange ideas with recognized researchers.

For more information please visit

Tuesday, August 30, 2011

CACICC Research Group paper accepted for publication

After several months our paper entitled "Wavelet Fisher Information of 1/f signals" has been accepted for publication in Entropy Journal. Entropy Journal is abstracted/indexed in Journal Citation Reports of ISI. Congratulations to the authors an hope to have more relevant results.

The paper defines a novel information theoretic measure in the wavelet domain and later applies this information measure to 1/f signals. Figure at the topo of the post shows the theoretical Wavelet Fisher Information for these types of signals.